User guide

Chapter 1
Introduction
This document describes communication services offered by Neda Communications,
Inc. and focuses on the means by which they are accessed.
There are numerous services available to the Neda PCCS user. This paper focuses
on Messaging and Information Services.
1.1 About This Service
The architecture for the Messaging Services is based on the client-server model. The
architecture provides for a variety of forms of message origination and message deliv-
ery. The architecture is a critical mechanism for delivery of all kinds of messages.
The intent of the service is to allow a mobile user access to electronic messaging
services from a variety of devices. Users who utilize mobile communicating devices
have available to them a number of ways to access computing services. Neda strives
to allow for the mobile user to chose which device makes the most sense for each user.
For example, it may be easier for the user to use a laptop and a modem, or it may be
easier to use a cellular telephone. The user’s device is the user’s responsibility. The
mailbox server, message transfer, transport and routing services are offered by Neda.
Directory Services are a shared responsibility.
While the workstation could be viewed as an Internet host in the sense that it must
implement IP, nonetheless it is not expected to contain the user’s mailbox. It is impor-
tant for the mailbox to be on an ”always up” machine. A user’s workstation may be
frequently powered down or otherwise unavailable as an SMTP server.
The currently available Messaging Services from Neda include Enhance Two-Way
Paging (ETWP), Internet Mailbox services, Internet Mail delivery services, Interactive
Voice Response, Pager Gateway, and Fax Gateway; all integrated together.
Figure 1.1 illustrates this.
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